Individual Towns that are Fully or Partially in the Ipswich Watershed - Idrisi Raster File.

Summary

Short name: 

GIS_ip30_info_towns

Abstract: 

This datalayer is part of a group of layers used for research in the Ipswich River Watershed. This layer includes the area within each town in the Ipswich River Watershed. This map contains complete information and was derived from the ip30_noinfo_towns layer.

Citation Suggestion: 

Aldrich, S., Pontius, R. G., 2019. Individual Towns that are Fully or Partially in the Ipswich Watershed - Idrisi Raster File. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/be54cf783ad41e7c689bb0c499da474c

Data set ID: 

265

EML revision ID: 

2

Data sources: 

GIS Data Archive Download: GIS_ip30_info_towns.zip

Individual town boundaries for towns in Ipswich Watershed

Categories

PIE Research Areas: 

Keywords: 

GIS Section: 

Section: 

Dates

Date Range: 

Monday, January 1, 2001 to Monday, December 31, 2001

Publication Date: 

Thursday, August 1, 2019
People

Owner/Creator: 

Robert G. Pontius Jr.
Related
Downloads
Methodology

Methods: 

Edit town boundary vector polygon to include only polygons within our Ipswich Study Area. Import edited vector polygon into Idrisi 32 Release 2.
Rasterize with POLYRAS module. Remove “no information” category using a reclass.

Process_Date: June 2001

 

Information relevant to the GIS data encoding

Individual town boundaries for towns in Ipswich WatershedHorizontal Coordinate System Name:NAD 1983 StatePlane Massachusetts Mainland FIPS 2001

Datum: D North American 1983
Reference Ellipsoid: Name: GRS 1980 Semi Axis: 6378137.0
Meridian: Greenwich
Projection Name : Lambert Conformal Conic
Number of bands : 1
Raster Origin : Lower Left
Rows : 1152
Columns : 1692
Cell Geometry :pixel